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    System for all-optical clock recovery
    3.
    发明申请
    System for all-optical clock recovery 审中-公开
    全光时钟恢复系统

    公开(公告)号：US20050141898A1

    公开(公告)日：2005-06-30

    申请号：US11004368

    申请日：2004-12-03

    申请人： Dae Yee ,  Young Leem ,  Kyung Park ,  Dong Kim ,  Sung Kim

    发明人： Dae Yee ,  Young Leem ,  Kyung Park ,  Dong Kim ,  Sung Kim

    IPC分类号： H04B10/00 ,  H04B10/17

    CPC分类号： H04B10/299

    摘要： Provided is a system for all-optical clock recovery that can reduce a pattern effect and timing jitter of an optical clock. The system includes an optical signal controller that controls the magnitude and polarization state of an optical signal, a laser unit that receives the optical signal output from the optical signal controller and outputs an optical clock, and an optical regeneration loop that controls the phase, polarization, and magnitude of the optical clock output from the laser unit so as to provide the laser unit with the optical clock, the phase, polarization, and magnitude of which are controlled, and the optical signal output from the optical signal controller.

    摘要翻译： 提供了一种用于全光时钟恢复的系统，其可以减少光时钟的图案效应和定时抖动。 该系统包括控制光信号的幅度和偏振状态的光信号控制器，接收从光信号控制器输出的光信号并输出​​光时钟的激光单元，以及控制相位极化的光再生回路 以及从激光单元输出的光时钟的大小，以便为激光单元提供控制其相位，极化和幅度的光时钟，以及从光信号控制器输出的光信号。

    Apparatus and method for wavelength conversion and clock signal extraction using semiconductor optical amplifiers
    4.
    发明申请
    Apparatus and method for wavelength conversion and clock signal extraction using semiconductor optical amplifiers 有权

    公开(公告)号：US20070070493A1

    公开(公告)日：2007-03-29

    申请号：US11491646

    申请日：2006-07-24

    申请人： Dong Kim ,  Min Jeon ,  Young Leem ,  Eun Sim ,  Kyung Park ,  Sung Kim

    发明人： Dong Kim ,  Min Jeon ,  Young Leem ,  Eun Sim ,  Kyung Park ,  Sung Kim

    IPC分类号： H01S3/00

    CPC分类号： H04B10/299

    摘要： Provided is an apparatus and method for simultaneous optical wavelength conversion and optical clock signal extraction using semiconductor optical amplifiers (SOAs). The apparatus includes: a wavelength converter receiving a pump beam having input information and a probe beam having a different wavelength from the pump beam, and outputting the pump beam with an overshoot shifted to a red wavelength and an undershoot shifted to a blue wavelength due to non-linear characteristics and self-phase modulation of semiconductor optical amplifiers (SOAs) and the probe beam delivered the input information from the pump beam; an optical divider dividing output paths of the probe beam to which the input information has been delivered and the pump beam having the overshoot and the undershoot; a converted-wavelength extractor filtering the probe beam received from the optical divider; and a clock data regenerator obtaining a pseudo return-to-zero (PRZ) signal from the pump beam received from the optical divider and extracting a clock signal from the PRZ signal. The apparatus and method can simultaneously perform wavelength conversion and optical clock signal extraction on an NRZ signal using an optical method, without converting the NRZ signal into an electrical signal.